[HarfBuzz] Regression test for Khmer(0.9.5 VS 0.9.14)

[Mathieu Pellerin]

One comment r first line in your attached km_test.png: 0.9.14 actually has
it right while both 0.9.5 and windows 7 are wrong. I would actually tend to
believe the two other cases are also better in my view under 0.9.14. The
sign ៊ when applied following an upper vowel (like ិ ី etc.) is shifted
below the consonant and looks like ុ

I however believe there are currently two schools of thought on this in
Cambodia. Language experts are weighting in on both sides :)

M



On Tue, May 7, 2013 at 3:17 PM, datao zhang <dataozhang at hotmail.com> wrote:

> Hi all:
>
> Test font: Khmer OS.ttf, please refer to attachment.
>
> After compared two version, The new version can't handle consonant
> register shift correctly when combine with zwnj:
>
> 1.
>   ហ្វ‌៊ីតូអេសស្ត្រូចេន
> ha,coeng,vo,zwnj,triisap,_ii,ta,_uu,qa,_e,sa,sa,coeng,ta,coeng,ro,_uu,ca,_e,no
> ប៉ូលីហ្វ‌៊ីណូល
> ba,muusikatoan,_uu,lo,_ii,ha,coeng,vo,zwnj,triisap,_ii,nno,_uu,lo
> when zwnj is before triisap or muusikatoan, the shift should keep it as it
> should be, not changed it to vowel u. please refer to attachment.
>
> 2.
>   អ៊‍ឹកធឹក qa,triisap,zwj,_y,ka,tho,_y,ka I can't find any proof how to
> handle register shift when combine with zwj, maybe it should handled
> similar as zwnj. I have no idea about this. Maybe we can refer to uniscribe.
>
>
> Br,
> Dean
>
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